G - Physics – 01 – R
Patent
G - Physics
01
R
G01R 33/07 (2006.01) G01D 3/036 (2006.01)
Patent
CA 2195116
An apparatus includes a Hall effect device which generates an electrical output signal upon exposure to a magnetic field. An operating current for the Hall effect device is varied by input circuitry to maintain the output signal from the Hall effect device constant with variations in temperature of the Hall effect device while the magnetic field to which the Hall effect device is exposed remains constant. The input circuitry includes a temperature responsive element which is maintained at a temperature which varies as a function of variations in the temperature of the Hall effect device. The temperature responsive element is a silicon diode.
L'invention est un appareil à dispositif à effet Hall qui produit un signal électrique quand il est soumis à un champ magnétique. Un circuit d'entrée fait varier le courant de fonctionnement du dispositif à effet Hall pour maintenir constant le signal de sortie de ce dernier quand celui-ci subit une variation de température pendant que le champ magnétique qui lui est appliqué reste constant. Le circuit d'entrée comprend un élément sensible à la température qui est maintenu à une température qui varie en fonction de la température du dispositif à effet Hall. Cet élément sensible à la température est une diode au silicium.
Borden Ladner Gervais Llp
Corporation Eaton
LandOfFree
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